P. . Kapetch, T. . Sansayawichai, and K. . Pisancharoen, “Evaluation the Effif iciency of Simple Equation for Estimating Evapotranspiration and Changes of Soil Moisture in Sugarcane Field”, Thai Agric.Res.J., vol. 34, no. 1, pp. 2–12, Mar. 2016.